Home / 881,900,054.32-1,217,012,416.96-485,414,566.96

Finding the Fourth Proportional to 881,900,054.32, 1,217,012,416.96 and 485,414,566.96

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Solution

The fourth proportional to 881,900,054.32, 1,217,012,416.96 and 485,414,566.96 is: 669,866,786.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,900,054.32 : 1,217,012,416.96 = 485,414,566.96 : x
  2. Step 2: Convert to fraction form
    881,900,054.32/1,217,012,416.96 = 485,414,566.96/x
  3. Step 3: Cross multiply
    881,900,054.32x = 1,217,012,416.96 × 485,414,566.96
  4. Step 4: Simplify right side
    881,900,054.32x = 590,755,555,363,581,312
  5. Step 5: Solve for x
    x = 590,755,555,363,581,312/881,900,054.32
  6. Step 6: Final answer
    x = 669,866,786.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.